Summary
This paper is a contribution to the study of tunnelling in difficult conditions, with attention paid to large time-dependent deformations, which may develop either during construction, causing instabilities of the tunnel heading and of the face, or during the service life of the tunnel. Under these circumstances the construction costs may rise due to the delays in excavation time, the stabilisation and heavy support measures that need be adopted. Following a review of characterisation and modelling of time-dependent behaviour in rock, the mechanical behaviour of Clay Shales (CS), a structurally complex formation of the Apennines (Italy), is described. Then, the key factors involved in the selection of the constitutive model for CS are identified. Two constitutive models are selected and discussed and their specific material parameters determined. A case study of a large size tunnel is presented where numerical modelling by the finite difference method is carried out. The results of modelling are compared with the monitoring data in terms of radial convergence of the tunnel and extrusion of the tunnel face.
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References
A.G.I. (1979): Some Italian experiences on the mechanical characterization of structurally complex formations. In: Proc. 4th Int. Congr. on Rock Mechanics, Montreux, France.
E. E. Alonso J. Vaunat A. Gens (1999) ArticleTitleModelling the mechanical behaviour of expansive clays Eng. Geol. 54 173–183 Occurrence Handle10.1016/S0013-7952(99)00079-4
Anagnostou, G. (1991): Untersuchungen zur Statik des Tunnelbaus in quellfähigem Gebirge. Dissertation N. 9553. ETH. Zurich, Switzerland.
G. Anagnostou (1995) ArticleTitleSeepage flow around tunnels in swelling rock Int. J. Numer. Anal. Met. 19 705–724 Occurrence Handle10.1002/nag.1610191004
Aristorenas, G. V. (1992): Time-dependent behaviour of tunnels excavated in shale. Ph.D. Thesis, Massachusetts Institute of Technology. Boston, USA.
G. Barla (2001) Tunnelling under squeezing rock conditions D. Kolymbas (Eds) Tunnelling mechanics Eurosummer School Innsbruck 169–268
Barla, G. (2006): Large size tunnels excavated full face in difficult conditions. In: Löw, S. (ed.) Geologie und Geotechnik der Basistunnels am Gottherd und am Lötschberg, pp 275–286.
Barla, G., Pazzagli, G., Rabagliati, U. (1986): The San Donato tunnel (Florence). In: Proc. Int. Congress on Large Caverns, pp 61–69.
Barla, G., Forlati, F., Zaninetti, A. (1990): Prove di laboratorio su rocce tenere: problematiche ed esempi. In: Barla, G. (ed.) Terzo Ciclo di Conferenze di Meccanica e Ingegneria delle Rocce, MIR90. SGEditoriali, Padova.
Barla, G., Barla, M., Bonini, M. (2004): Characterisation of Italian clay shales for tunnel design. Int. J. Rock Mech. Min. Sci. 41(3). CD-ROM, © 2004 Elsevier Ltd.
Barla, M. (1999): Tunnels in swelling ground – simulation of 3D stress paths by triaxial laboratory testing. Ph.D. Thesis, Politecnico di Torino, Italy.
Bellwald, P. (1990): A contribution to the design of tunnels in argillaceous rock. Ph.D. Thesis, Massachusetts Institute of Technology, Boston, USA.
Boidy, E. (2002): Modélisation numérique du comportement différé des cavités souterraines. Ph.D. Thesis, Université Joseph Fourier, Grenoble, France.
Boldini, D. (2002): Deep tunnels in weak rock-masses: analysis of the ground-shotcrete interaction. Ph.D. Thesis, University of Rome La Sapienza, Italy.
Bonini, M. (2003): Mechanical behaviour of Clay-Shales (Argille Scagliose) and implications on the design of tunnels. Ph.D. Thesis, Politecnico di Torino, Italy.
Bonini, M., Barla, M., Barla, G. (2003): Characterisation studies of tectonized Clay Shales and implications in the excavation of large size tunnels. In: Proc. 10th Int. Congr. on Rock Mechanics – ISRM 2003, Johannesburg.
Bultel, F. (2001): Prise en compte du gonflement des terrains pour le dimensionnement des revêtements des tunnels. Ph.D. Thesis. Ecole Nationale des Ponts et Chaussées, Paris, France.
J. B. Burland (1990) ArticleTitleOn the compressibility and shear strength of natural clays Géotechnique 40 IssueID3 329–378 Occurrence Handle10.1680/geot.1990.40.3.329
A. Cicolella L. Picarelli (1990) ArticleTitleDecadimento meccanico di una tipica argilla a scaglie di elevata plasticità Ital. Geotechnical J. 24 5–23
D’Elia, B. (1980): Processi di ammorbidimento di un’argilla marnosa con struttura a scaglie. In: Proc., XIV Geotechnical National Congress, Vol. 2, pp 409–418.
D’Elia, B. (1991): Deformation problems in the Italian structurally complex clay soils. In: Proc., 10th Europ. Conf. on Soil Mech. and Found. Eng., Vol. 4, pp 1159–1170.
C. Di Maio G. B. Fenelli (1997) ArticleTitleClayey soil deformability: the influence of physico-chemical interactions Ital. Geotechnical J. 1 43–54
H. H. Einstein (2000) ArticleTitleTunnels in Opalinus Clayshale – a review of case histories and new developments Tunn. Undergr. Sp. Tech. 15 IssueID1 13–29 Occurrence Handle10.1016/S0886-7798(00)00025-0
G. Gioda A. Cividini (2002) ArticleTitleNumerical methods for the analysis of tunnel performance in squeezing rocks Rock Mech. Rock Engng. 29 IssueID4 171–193 Occurrence Handle10.1007/BF01042531
Grob, H. (1972): Anhydrite Schwelldruck in Belchentunnel. Int. Symp. on Underground Openings. Lucerna, Switzerland, pp 99–119.
M. Gysel (2002) ArticleTitleAnhydrite dissolution phenomena: three case-histories of anhydrite karst caused by water tunnel operation Rock Mech. Rock Engng. 35 IssueID1 1–21 Occurrence Handle10.1007/s006030200006
J. Huder G. Amberg (1970) ArticleTitleSoft Quellung in mergel, Opalinuston und anhydrit Schweizerische Bauzeitung 88 IssueID43 975–980
Itasca Inc. (2001): Flac2D 3.3, User’s manual. Minneapolis, USA.
Lemaitre, J., Chaboche, J. L. (1996): Mécanique des matériaux solides. Dunod, pp 253–341.
S. Leroueil P. R. Vaughan (1990) ArticleTitleThe general and congruent effects of structure in natural soils and weak rocks Géotechnique 40 IssueID3 467–488
B. Loret T. Hueckel A. Gajo (2002) ArticleTitleChemo-mechanical coupling in saturated porous media: elastic-plastic behaviour of homoionic expansive clays Int. J. Solids Struct. 39 2773–2806 Occurrence Handle10.1016/S0020-7683(02)00151-8
Lunardi, P., Focaracci, A. (1999): The Bologna to Florence high speed railway line: progress of underground. In: Alten et al. (eds) Challenges of the 21st Century, Balkema, Rotterdam.
F. T. Madsen (1999) ArticleTitleSuggested methods for laboratory testing of swelling rocks Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 26 IssueID3 211–225
J. K. Mitchell K. Soga (2005) Fundamentals of soil behaviour EditionNumber3 John Wiley and Sons Inc. Hoboken, New Jersey, USA
Olszak, W., Perzyna, P. (1964): On Elastic/Viscoplastic Soils, Rhéologie et Mécanique des sols. Symposium Franco-Polonais, Grenoble, Springer-Verlag, pp 47–57.
F. Pellet A. Hajdu F. Deleruyelle F. Besnus (2005) ArticleTitleA viscoplastic constitutive model including anisotropic damage for the time dependent mechanical behaviour of rock Int. J. Numer. Anal. Meth. Geomech. 29 941–970 Occurrence Handle10.1002/nag.450
Perzyna, P. (1966): Fundamental problems in viscoplasticity. Advances in applied mechanics, Vol. 9, Academic Press, pp 243–377.
L. Picarelli L. Olivares (1998) Ingredients for modelling the mechanical behaviour of intensely fissured clay shales The geotechnics of hard soils – soft rocks Balkema Rotterdam 771–770
L. Picarelli L. Olivares C. Di Maio G. Urciuoli (2000) Properties and behaviour of tectonized clay shales in Italy The geotechnics of hard soils – soft rocks Balkema Rotterdam 1211–1241
Pimentel, E. (1996): Quellverhalten von diagenetisch verfestigtem Tonstein. Ph.D. Thesis, Karlsruhe, Germany.
O. Pregl M. Fuchs H. Müller G. Petschl G. Riedmüller B. Schwaighofer (1980) ArticleTitleDreiaxiale Schwellversuche an Tongesteinen Geotechnik 3 1–7
Wittke, W. (1978): Grundlagen für die Bemessung and Ausführung von Tunnels in quellendem Gebirge und ihre Anwendung beim Bau der Wendeschleife der S-Ban Stuttgart. Veröff. Institut f. Grundbau, Bodenmech, Felsmech., Verkehrswasserbau, RWTH Aachen, 6 pp.
W. Wittke (2000) Swelling stability analysis for tunnels – fundamentals Verlag Glückauf GmbH Essen, Germany
R. C. K. Wong (1998) ArticleTitleSwelling and softening of La Biche shale Can. Geotech. J. 35 206–221 Occurrence Handle10.1139/cgj-35-2-206
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Bonini, M., Debernardi, D., Barla, M. et al. The Mechanical Behaviour of Clay Shales and Implications on the Design of Tunnels. Rock Mech Rock Eng 42, 361–388 (2009). https://doi.org/10.1007/s00603-007-0147-6
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DOI: https://doi.org/10.1007/s00603-007-0147-6